中国农业科学2011，Vol.44Issue(3)：456-460,5.DOI:10.3864/j.ssn.0578-1752.2011.03.003
大豆对大豆疫霉菌株Pm14抗性的遗传分析及基因定位
Genetic Analysis and Mapping of Resistance to Phytophthora sojae of Pm14 in Soybean
摘要
Abstract
[Objective] The objective of this study was to reveal the inheritance pattern and map resistance gene to Phytophthora sojae (P. sojae) strain Pm14 in soybean. [Method] A population of 176 recombinant inbred lines (RIL) derived from the cross of Su88-M21 ×Xinyixiaoheidou was evaluated for phytophthora resistance using the hypocotyl inoculation technique. The RIL was used to analyze the inheritance of resistance and map the resistance gene to a linkage group. [Result] The results showed that the resistance of Su88-M21 to strain Pm14 is controlled by a single gene (Rps), and the resistance is dominant to susceptible.RpsSu (resistance gene in Su88-M21 was temporarily designated) is a novel phytophthora resistance gene which was firstly found on molecular linkage group O, and flanked by Satt358 and Sat_242 with genetic distances 3.5 cM and 7.4 cM. [Conclusion] The resistance to Pm14 is controlled by a single dominant gene (Rps), and the resistance gene RpsSu in Su88-M21 was firstly mapped on molecular linkage group O.关键词
大豆/大豆疫霉/遗传分析/抗性基因/SSR标记引用本文复制引用
武晓玲,周斌,孙石,赵晋铭,陈受宜,盖钧镒,邢邯..大豆对大豆疫霉菌株Pm14抗性的遗传分析及基因定位[J].中国农业科学,2011,44(3):456-460,5.基金项目
农业部行业专项(nyhyzx07-053)、"长江学者和创新团队发展计划"创新团队项目(PCSIRT)、高等学校博士学科点专项科研基金(20090097120023) （nyhyzx07-053）
